<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card>
      <!-- gutter来设置行内列之间的距离 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <el-table :data="goodsList" style="width: 100%">
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格（元）" width="95px">
        </el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="80px">
        </el-table-column>
        <el-table-column label="创建时间" width="140px">
          <!-- 使用全局时间过滤器将时间戳转为日期格式 -->
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="editById(scope.row.goods_id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="1"
        :page-sizes="[10, 15, 25, 30]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 请求参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,
      },
      // 商品列表
      goodsList: [],
      // 数据总条数
      total: 0,
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //   获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表数据失败！')
      } else {
        this.goodsList = res.data.goods
        this.total = res.data.total
        return this.$message.success('获取商品列表数据成功！')
      }
    },
    // 页容量发生改变时
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 页码发生变化
    handleCurrentChange(pageNum) {
      this.queryInfo.pagenum = pageNum
      this.getGoodsList()
    },
    // 删除商品
    async removeById(id) {
      const result = await this.$confirm('确定要删除这个商品数据吗？', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).catch((err) => err)
      if (result !== 'confirm') {
        return this.$message.info('已取消该删除操作！')
      } else {
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
          this.$message.error('删除失败！')
        } else {
          this.getGoodsList()
          this.$message.success('删除成功！')
        }
      }
    },
    // 添加按钮--到添加页面
    goAddPage() {
      this.$router.push('/goods/add')
    },
    // 编辑按钮--存储商品id到原型，跳转到编辑页面
    editById(id) {
      this.editGoodsID.id=id
      this.$router.push('/goods/edit')
    },
  },
}
</script>

<style lang="less" scoped>
</style>